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NEET 2022

Exam: NEET
Year: 2022
Subject: Chemistry
Chapter: Carboxylic Acid Derivatives

NEET 2022 · Chemistry · Carboxylic Acid Derivatives

RMgX + CO _ 2 → _ ether ^ dry Y H _ 3 O ^ + ⟶ RCOOH What is Y in...

$RMgX + {CO}_{2}\mathop{\to}_{ether}^{dry}Y\overset{{H}_{3}{O}^{+}}{⟶}RCOOH$

What is $Y$ in the above reaction?

RMgX + CO _ 2 → _ ether ^ dry Y H _ 3 O ^ + ⟶ RCOOH What is Y in the above reaction?

Options

A ${R}_{3}{CO}^{-}{Mg}^{+}X$
B ${RCOO}^{-}{X}^{+}$
C $\left(RCOO\right)2Mg$
D ${RCOO}^{-}{Mg}^{+}X$

Correct answer

D. ${RCOO}^{-}{Mg}^{+}X$

Step-by-step solution

Grignard reagent on reaction with carbondioxide in presence of dry ether forms an addition product which on hydrolysis produces carboxylic acid.

RMgX + CO _ 2 → _ ether ^ dry Y H _ 3 O ^ + ⟶ RCOOH What is Y in the above reaction?

Hence, $Y$ in the above reaction is ${RCOO}^{-}{Mg}^{+}X$

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